Casey is from Los Angeles, California. She graduated from the University of Washington in June 2019 with a Bachelor of Arts in both Medical Anthropology and Global Health, and Political Science, and from the Johns Hopkins Bloomberg School of Public Health in May 2021 with a Master of Health Science in Environmental Health with certificates in Food Systems, Public Health, and the Environment; and Climate Change and Public Health. Between undergraduate and graduate school, Casey was a Peace Corps volunteer working as an English Teacher and Teacher Trainer in Bangil, Jawa Timur, Indonesia. As a graduate student, Casey worked as a research assistant under Dr. Anita Shankar working on research surrounding personal agency in international development and assisted in projects involving the effects of clean cookstoves and empowerment training interventions on gender based violence. Her master's thesis explored the socio-ecological health impacts of U.S. militarism and imperialism in Korea. Casey's primary interests are in sustainability and justice.